Gin-saw cleaner.



N0. 656,206. I Patented Aug. 2|, I900.

B. r. McGAW.

' GIN- SAW-ICLEANER.

(Application filed my 21, 1900.)

(No Model.)

l I I I I uglier-gays AEN Prion.

BENJAMIN F. MOGAW, OF COLUMBIA, TENNESSEE.

GlN-SAWCLEANER.

SPECIFICATION forming part of Letters Patent No. 656,206, dated August21, 1900.

' Application filed May 21,1900. Serial N0. 17,4=28- (No model.)

To all whom, it may concern:

Be it known that I, BENJAMIN F. MoGAW, a citizen of the United States,residing at O- lumbia, in the county of Maury and State of Tennessee,have invented a new and useful Gin-Saw Cleaner, of which the followingis a specification.

This invention relates to cotton-gins, and more particularly to thatclass including a series of saws to which the cotton is fed and by meansof which it is ginned, the object of the invention being to provide aconstruction wherein the saws will be cleaned, this cleaning means beingso constructed that the parts will be durable, so as not to wear sorapidly as usual.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a central vertical section taken through the gin and showingthe saws at the base of the hopper and the means for cleaning them. Fig.2 is a view, partly in elevation and partly in section, showing thecleaning-roller and the saws in their proper operative relation. Fig. 3is an enlarged detail section showing a portion of the cleaningrollerand portions of saws engaged therewith and illustrating the cleaningcompound in the grooves of the cleaning-roller. Fig. at is a transversesection of the cleaning-roller,showing a portion of an engaging-sawinelevation.

Referring now to. the drawings, 5 represents the gin-frame, having theusual structure, and at one end of which is formed a hopper 6 and at theother end an exhaustchute 7, the latter reaching to the usual bottomboards 8.

Mounted in'the sides of the gin-frame and at the lower end of the hopperis a saw-shaft 9, upon which is mounted a plurality of equidistant andmutually-parallel saws 10,adapted for rotation with the shaft in anydesired manner. Behind the saws is the usual brushll.

In order to clean the saws and prevent clogging of the cotton in theteeth thereof, there is provided a cleaning-roller 30,mounted upon theshaft 31, journaled in the gin-frame, and which roller has a pluralityof peripheral grooves 32, corresponding to the number of the saws, andinto which grooves the edges of the saws project. In the manufacture ofthis roller the peripheral grooves are first formed, and a sheet ofleather 38 is then secured over the roller in the form of a sheath orcasing, and which leather sheath-or casing is cut in line with theperipheral grooves and midway between the sides thereof to form slots33, through which the saws project into the grooves 32. These slots 33are of such widths that the edges thereof will lie closely against theside faces of the saws, as shown in Figs. 2 and 3. This cleaning-rolleris rotated at a higher rate of speed than the saws and in an op positedirection thereto,so that the contacting portions of the saws and rollerwill travel in the same direction. By then rotating the cleaning-rollerat a higher speed than the saws the edges of the leather bands whichresult from the slitting of the casing will move the attached cottonforwardly of the teeth and free of the extremities thereof. In order tosecure the proper speed and direction of rotation of the cleaning-rollerwith respect to the saws, a large pulley is fixed upon the shaft 9 and asmall pulley 26 upon the shaft 31. These pulleys are connected by meansof a crossed belt, (indicated in dotted lines at 37.)

In order. to prevent excessive wear of the leather bands 38 at the edgesthereof, the peripheral grooves 32 have a mixture of pumicestone and oilplaced therein, and into which mixture the saws dip, these bands 38being the bands referred to above as resulting from the slitting of theleather casing of the cleaning-roller. As the saws pass into and out ofthe slots 33 they act to coat the edges of the bands with pumice, thusvastly increasing the durability of the edges.

With this construction it will be seen that the saws will'be effectivelycleaned, while the cleaning apparatus will have a life of maxi mumlength, and it will be understood that in practice various modificationsof the structure shown may be made and. that any suitable materials andproportions may be used for the various parts without departing from thespirit of the invention.

What is claimed is 1. A gin-saw cleaner comprising a roller havingperipheral grooves to receive the saws, and continuous bands of pliablematerial fixed upon the roller and projecting part way over the groovesto engage their edges with the faces of the saws.

2. A gin-saw cleaner comprising a roller having peripheral groovesadapted to receive the teeth of the saws, and bands of pliable materialat the sides of the groove and extending part way thereover to engagetheir edges with the faces of the saws, said grooves having abrasivematerial therein.

3. A gin-saw cleaner comprising a roller.

having peripheral grooves adapted to receive It is hereby certified thatLetters Patent No. 656,206, granted August 21, 1900 upon the applicationof Benjamin F. McGaW, of Columbia, Tennessee, for an improvement inGin-Saw Cleaners, was erroneously issued to said McGaw as owner of saidinvention; that said Letters Patent should have been issued to theinventor and James M. Parker and Zachariah A. Parker, jointly, saidJames M. Parker and Zachariah A. Parker, being assignees of one-halfinterest, as shown by the record of assignments in this office; and inthe heading the words and figures Application filed May 21, 1900, SerialNo. 17,428, should read Original application filed October 28, 1899,Serial No. 735,095. Divided, and this application filed May 21,1900.Serial No. 17 ,4Q8 and that the said Letters Patent should be read withthese corrections therein that the same may conform to the record of thecase in the Patent Office.

Signed, countersigned, and sealed this 18th day of September, A. D.,1900.

[SEAL] F. L. CAMPBELL,

Assistant Secretary of the Interior. Oountersigned O. H. DUELL,

Commissioner of Patents.

